Smoking pipe



M. KEESING Sept. 4, 1934.

SMOKING PIPE Filed June 27, 1951 Patented Sept. 4, 1934 UNITED STATES PATENT OFFICE 19 Claims.

My invention relates to smoking pipes and especially to novel and improved structures and arrangements for progressively advancing or feedy ing the tobacco charge in the bowl as it is con- Means are also provided by which the base or plug may be advanced from time to time to position, reposition, or practically maintain the zone of combustion at a desired location in the bowl. This location is usually at or about the top of the bowl. Such feeding means is in the general nature of lever means such as a helix or screw, or cam, and an external knob or handle is provided by which the feeding or positioning of the charge may be effected.

My invention also provides in general a removable or demountable magazine or chamber for recharging the pipe bowl without disturbing the remnant of the tobacco charge previously advanced in the bowl.

By the described structure or arrangement, the charge is kept in a desirably dry and good smokable condition until it is practically all consumed, and the common difficulties or disadvantages such as moistening cf the lower part of the charge, resulting in rank taste, repeated extinguishment and necessity for relighting each time the tobacco charge is renewed, etc., are avoided.

The invention includes also various novel and improved detail features of structure or arrangement.

The characteristics and advantages of the invention are further sufciently explained in connection with the following detail description of the accompanying drawing, which shows the preferred embodiments. After considering these examples, skilled persons will understand that many changes may be made without departing from the principles disclosed; and 1 contemplate the employment of any structures that are properly within the scope of the appended claims.

Fig. 1 is a top plan of a pipe embodying the invention in one form.

Fig. 2 is a side elevation.

Fig. 3 is a section at 3 3, Fig. l.

Fig. 4 is a similar section with some parts omitted.

Fig. 5 is a section at 5 5, Fig. 3, with a modication.

Fig. 6 is aside elevation of the demountable or removable structure, with a part broken away.

Fig. 7 is a top plan of Fig'. 6; Fig. 7 also illustrates a modification of the draft openings in the advancing member. V

Fig. 8 is a side elevationof the removable structure, on a scale larger than that of Figs. 6 and 7, and with certain of its parts removed and with a modification.

Fig. 9 is a vertical section, comparable to Fig.

4, but showinga modification.

Fig. r10 is a side elevation of the demountable 65 or removable structure of Fig. 9, a part being broken away.

Fig. 11 is a top plan View of the modification shown in Fig. 10. A

Y Fig. 12 is a fragmentary vertical section showing a further modification;A and Fig. 13 is a side elevation, partly broken away invertical section, of Fig. 12. y f

Referring to the form of `my invention illustrated in Figs. 1 to 8; inclusive, thev bowlV is indicated at 15, and may be of any suitable contour and dimensions. The pipe stem 16 may have any suitable mouthpiece 17. Y

Within the bowl and in suitable relation with the draft inflow opening 18 of the stem 16, I provide suitable means for progressively advancing the tobacco charge within-the bowl as it is consumed. Preferably, the inner contour of the bowl is of general cylindrical form, and my advancingl and feeding means is of like contour.

My advancing andv feeding means comprises generally a demountable structure 19, see Figs.` 6, 7 and 8, which includes a hollow cylindrical member 20 for receiving the tobacco charge. Suitably associated with the hollow member 20 I provide an advancing means, illustrated in the drawing in the form of a false bottom member 21, which may be hollow, and associatedtherewith I provide suitable means operative upon movement, i. e., rotation, of an external knob 22, wherebyk the member 21 and therewith the charge Aof tobacco is advanced within the charge receiving member 20 and thus within the interior of the bowl, provision being had for air flow to and through the portion of the charge under ignition through the inlet opening 18 and thence through the bore of the pipe stem 16 and mouthpiece 17.

As one means for advancing the charge feeding means 21 I provide a helical groove 23, i. e., pair of helical grooves, see Figs. 3 and 4, in this instance oppositely related in the outer vhollow member 24, each helical groove extending upwardly in corresponding direction, and follower means, i. e., pair of oppositely disposed follower elements 25, 25, suitably connected with the advancing member 21 at its opposite sides, the cylindrical member 20 being secured to the knob 22, as appears more fully hereinafter, whereby upon rotation of the knob 22, the followers 25, 25 and therewith the member 21 and tobacco charge are advanced within the pipe bowl.

The groove provided member 24 is normally retained within the interior of the bowl, and may be secured therein by any suitable means. The grooves 23 are illustrated in these figures of the drawing as'of 'the left-hand screw type, but may be of the right-hand screw type.

The bowl is preferably bored or molded to have an enlarged diameter for receiving the member 24, the enlargement of the bore being desirably of a dimension to position the inner face of thel The helical grooves 23 or equivalent serve also as passage means for the air draft ow fromthe ignited portion of the tobacco charge to the bore fof the pipe stem.

For substantially vertical, axial advancement of the feedingmember 21, and therewith of the.

tobacco charge, I/provide the cppositely disposed vertically extending vpair of slots 27, which are formed in the cylindrical wall of the charge receiving member 20, and through each pair of slotsr27 respectively extend the lateral portions of each` follower 25, connected with the Aopposite sides of the advancing member 21. Desirably, each follower 25 mayconsist of a length of suitable material, bent of a slanted, arcuately O- shape, and the ends 25a oteach member may be positioned interiorlyof the lhollow ieed member 21, thelparts of the saidends 25a which pass through the walls of member 21 being narrower than the parts of ends 250. which lie inv the slots 27. thus preventing members 25 from binding against lmember 20, but-maintaining `the members 25. in slidable relation to member 20, see Figs. 3 and 7. y g ,Y

To provide ample draft for the proper ignition of the tobacco charge, the openings 23 are provided in ther circular portion of Athe feed member 21,`see Figs. 1 and 3, and desirably the interior of the bowl of the pipe is enlarged as at 29 in suitable adjacency to the inlet opening k18 of the pipe stem 16. The enlargement 29 isvnot neces-y sary if a helical slot is placed to cross opening 1S. In lieuofopenings 28 in the circular base ofthe member 21, I may provide grooves 2311'I at the cylindricalperiphery of the member 21, see Fig. 7, which grooves afford draftpassages toward the bottom of the member 21, and thence through the grooves 23, 27, tothe bore of thel pipe stem. The feed member 20 is secured tothe knob 22 iny any suitable mannenas by providing at the lower. end of the Yfeed member 20, a flange 30, see Fig.,3, which may be either permanently or removably (see Fig, 3) secured to the member 31 comprising at its upper portion a general cylin drical disc, which may be reduced annularlyr at secured tov such annularly reduced portieri. The member 31 further :comprises a centrally disposed extension 31h which may be cylindrical and received within the cylindrical central open-v ing22a ofthe knob 22,v for scour-ement therein` by any suitable means, as a pin 32 or by riveting,l

staking, or the like.

,A form of detachable securement of thecharge 751 receiving memberj20 relative to the yknob 22 is illustrated in Figs. 5 and 8, as by means of the locking members 33 secured by the' indicated rivets, or by spot welding or other suitable means, to the lower face of the flange 30 of the charge member 20, the outer flange portion 31a being cut away at its peripheryto form a slot 31e, in this instance a pair of such slots to receive a pair of locking members 33, the length of each slot 31C corresponding to the length of each locking member 33, each terminal portion 33a projecting at a spacing from the underface of the fiange 30 to frictionally receive within such spacing the fiange 31a.

' Desirably, each locking member 33, 33 is provided with suitable gripping means at its locking portion 33a, such as an upturned protuberance 3317, and the portion of the underface of the flangegla engaged by each protuberance 33h may be inwardly curvedly indented, grooved orthe like, to thereby effectually hold the parts to one another in locking engagement, the engagement being in the nature of a detent allowing of disengagement by a moderate twist applied in the proper direction between the knob 22 and magazine 20. y In the form of my invention shown in Figs. 1 to 8, I have also illustrated a face member 34 for the lower edge portion of the bowl 15, which face member 34 is carried by the removable or demountable magazine assembly,'the face memberl 34 eiectuallyV serving as a locking member for the demountable magazine assembly; One locking means as illustrated in Figs. 2 and 7, see also Fig. 9, comprises oppositely disposed bayonet slots 35 and locking pins 36 carried bythe respective members, as by grooving the lowerly portion of the bowl with a pair ofV such slots 35, see Figs. 2 and 4, and inwardly extending pins 36 secured'to the inner face of the ange of the member 34.

To facilitate ready assembly of the relatively movable parts of the demountable magazine, I prefer tomount the face member 34 relative to the knob 22 proper by means of an `intermediate disc member 37, see Figs. 3 and 5, which is fastened to member 34 by any suitable meansand is loosely rotatable about the stem 315, said disc member 37 including a central hub portion 37a, the disc body portion being provided with limiting stops 37b, 37b', cooperating with xed stop lug 38 secured to and projecting downwardly from the lower face of the member 31, the arc of movement of the stop 38 between thelstop members 37b, and 37b as viewed in Fig. 5, correspending to the extent of rotation of the knob 22 Yrequired for the full advancement of the charge member 21 axially upwardly within the bore of the pipe bowl, and conversely for its return movement. The purpose of the intermediate, stop-provided member will appear more fully hereinafter. v

From the above, it will appear that I have providedy a pipe bowl with suitable means, preferablyremovable through the bottom of the bowl whereby a charge of'smoklng tobacco is fed into the bowl and affords advancement of the fresh tobaccoV to the zone of combustion progressively as the ignited portion of the charge hasvbeen v consumed.

During the stage of combustion of the tobacco charge, the draft for supplying air through the upper portion of the pipe, induced by the user drawing through the bore of the mouthpiece, flow of the air is afforded through multiple channels, either through thehelical and/or vertical :grooves and/or equivalent guide means for the advancing member and/or through the openings in the supporting base or the ygrooves along'the cylindrical periphery of the advancing member.

In the use of my improved pipe, the initial charge may be placed within the pipe bowl, as in a regulation pipe, or within the demountable magazine, and as the charge is consumed, the knob 22 is turned from time to time to advance the unburned portions of the charge progressively upwardly within the bowl to maintain the ignited portion of the charge substantially at or near the top of the bowl. The resulting ash may be removed at will from time to time, or if not so removed, is discharged over the top edge of the bowl. n

Upon consuming the initial charge to a desired extent, Aa fresh charge is loaded by turning the knob in the reverse direction, whereupon the advancing member 21is returned to its lowermost position; the further turning of the knob 22 effecting an uncoupling of the locking member 34 relative to the pipe bowl 15, but preferably the member 34 is grasped and turned in unlocking direction, whereafter the magazine is disconnected from the pipe bowl. The outer cylindrical surface of member 34 is preferably knurled, embossed or roughened to provide a grip for operating the bayonet lock.

The withdrawal of the member 2l from its upper position and the removal of the magazine as a whole from the pipe bowl, do not disturb the remnant of the charge within the upper part of the pipe bowl.

'Ihe fresh tobacco charge is now placed within the loading member 20, in which operation the relatively movable parts of the magazine preferably should not be disturbed. However, in any event, the knob 22 is turned with one hand in the previously described direction of withdrawal of the member 21 to the limit of movement determined by the stop pin 3S encountering the stop lug 37b, the part 34 being grasped with the other hand, for the purpose of registering members 25' with helical slots 23 when pins 36 are registered with the open ends of bayonet slots 35, and the magazine is now inserted generally within the bottom opening of the pipe bowl, the pins 35 then placed in proper position with respect to the bayonet slots 35, whereupon the member 34 is turned in the same direction asthat of the knob 22 when feeding the charge upwardly within the pipe bowl, thereby locking member 34 tothe pipe bowl 15.

Preferably, as indicated in the drawing, the inltial portion of the path of the bayonet slots 35 corresponds to the path of the lowermost portion of the helical slots 23, to preclude any relativo binding effect. The final portion of the bayonet slots 35 are essentially parallel to the bottom face of the pipe bowl, to insure the desired locking action.

The feeding of the fresh charge yensues similarly as above described.

The stop lug 37b functions to limit the upward advancement of the member 21 at a time in advance of the time when the followers 25 attain the uppermost limit of the helical slots 23 and the vertical slots 27, thereby positively precluding the imposition of undue strains on themembers 24, 20 and the followers 25. However, the stop lug 37b. may be omitted if desired u If desired, the removed feeding and advancing means may be cleansed, as by wiping, or by washing in a flow of Water or otherwise. The disconnectable connection between the magazine 20 and the base supporting member 31, represented by the locking clips 33, is provided for separation of these members relative to one another, to afford access interiorly within the advancing member 21 and the lower portion of magazine 20, in the event of moisture, or condensation of the products of combustion, or unconsumed tobacco particles accidentally or otherwise entering through the vent openings 28, etc.

It is appreciated that such disconnectable connection introduces additional manufacturing costs, which may not be commensurate with the degree of refinement in cleansing afforded by the separability of these parts, and accordingly my invention definitely contemplates the permanent securement of these members to one another, as indicated in Fig. 3.v

The modification shown in Figs. 9, 10 and 11 conforms in lgeneral respects to the above described embodiment of my invention. In the modification, however, the charge feeding and advancing means is provided with the oppositely disposed helical guide grooves 4i)-in lieu of these guide grooves disposed on the inner face of the pipe bowl, or in a guide member 24--and cooperating with such grooves 40, 40, are pins or rollers 41 secured at opposite diametrical positions, on the outer face of the advancing member 21. These grooves 40 are illustrated of the right-hand 105 screw type, causing the advancing member to approach the top of the pipe bowl when the knob is turned in a clockwise direction as viewed from above, as in the previously described modification. and vice versa. Grooves 40 may be made of the 1.1.0 left-hand screw type in which event the' knob must be turned in the reverse direction to cause an advance or withdrawal of the advancing member. In such advancing andwithdrawal of advancing member 21, the movements of the followers 41, 41, move upwardly and downwardly respectively in the vertical slots 24a in the member 24. Slots 24a may be cut d`rectly into the material proper of pipe bowl 15 and partl 24 dispensed with if desired.

' The modified locking means comprises aV pair of oppositely disposed bayonet shaped hooks 45 (see Figs. 12 and Y13) which cooperate with a pair of oppositely disposed bayonet slots 47a, the hooks, preferably arcuate, for example being secured in or to the member 45 and the slots 47a, preferably arcuate, being formed in a ring 48, fixed in any suitable manner, as by screws, etc., to the bottom edge of the material proper of the bowl 15, or by embedding the ring 48 partially or 130 wholly in the material of the bowl 15, the direction of locking movement in this instance corresponding to that of the pins 36 and the arcuate bayonet slots 35 described hereinabove, namely, in the rotative direction of upward travel of the charge advancing member 21. Recesses 47 are formed in the bottom end of the pipe bowl proper 15 to receive the portions of bayonet hooks 46 which extend through the slots 47d of the ring 48.

The member 45 is provided with a central 14() opening 45h, through which the annular shoulder member 37a extends, the member 45 being related to the member 37a, similarly to the aforesaid member 34. Such member 45 may be made of any suitable material, simple or composite, and I may be colored and surfaced to match the appearance of the exterior face of the bowl 15.

In Figs. 12 and 13, the knob 22 is shown ask without a central hub, and the securement of the knob 22 to the stem 31o may be had by any 150 leo (SGI

'stem secured to andcornmunicating with said -suitable means such as a key or pin 32a inserted `in joint, registering keyeways or slots in theface of the central opening of Athe knob. 22 and the cylindrical face of the stem 31h by such key 32a functioning in lieu of the aforesaidv pin 32 or by riveting or staking.

The various partsof .my invention' may `be formed of any suitable material, metallic or non- 1netallic,which is 'capable of withstanding the mechanical stresses incident'to' operation and the temperature arising from the combustion of the tobacco, and which does not impart any undesirable taint to thetobacco, or odor to the resulting smoke. If the inner parts are made of metal,

which possesses advantages of manufacture and assembly, such metal may be coated with. chrou mium or other surface plating having the desired qualities, or inherently possessing thewdesired characteristics such as stainless stee Monel met-al, certain well known aluminum. alloys, and

the like. If not of metal, any suite. -e material possessing the requisite .qualities may be ein# ployed. 'I

Pursuant to my invention, the pipe bowl per se, and also the pipe stem, either of integral or separably connected relation to one another, may' be formed of molded material, such as bakelite, durite or other suitable material or composition, thus makingpossible the construction of the pipe material in lieu of wood. l

Whereas I have described my invention with reference to specic forms thereof, it will be understood that many changesand'modifieaticns may be made without departing from the spirit of theinvention. f

I claim: 4 v

1. A smoking pipe comprising a bowlfa hollow stem secured to and communicatingfwith said bowl, a hollow magazinemember for receiving a charge of tobacco, said'magazine memberv being disposed within said bowl at and above the region of communication of said stem with said parts proper of composition or any other suitable bowl, a feed plug for said hollow magazine mem- 451 ber, and means for advancing the plug axially through said hollow magazine member to adjust or feed a tobacco charge therein.

2.,l`he structure dened in claim l with-'the addition that said advancing means'compriees a helix and a cooperating follower.

3. A smoking pipe comprising abowl, a hollow stem secured to and communicating withsaid bowl, a hollow magazinemember forreceiving a 55.. charge of tobacco, said magazine member being disposed within said bowlat and above the region ofv communication of said stem with said bowl, a feed plugfor said hollow inagaainemember, and means foradvancing thep'lug axially ,throughv saidhollow magasine 'member to adjust or feed a tobacco charge therein, saidy hollow magazine member and its said feed plug being arranged as a unit'and demountably securedin Athe bowl.

y 4. vA smoking pipe comprisingr av bowl, a hollow bowl, ahollow magazine member for receivinga charge of tobacco, said` magazine member being disposed within said bowl at and above the region' 'of communication of said'stem with said bowl, a 'feed plug for said hollow magazine member, and means for advancing the plug axially through said hollow magazine member to adjust orrfeed a tobacco charge therein, said hollow magazine member and its said eed'plug being arrange 6. A'v smoking pipecomprising a bowl, a sleeve y normally ixed therein, a rotary charge-holding sleeve within the fixed sleeve, means for turningv the' rotary sleeve, a feed plug movable axially within the. rotary sleeve, helical means in the fixed sleeve, follower means operatively attached to the plug and operating in the helical means, 'and means guiding Vthe follower means axially in relation tothe bowl, the iixed sleevean'd the rotary sleeve.

7. Asmoking pipe comprising a bowl, a sleeve n' normally iixed therein, a rotary'chargeY-holding sleeve within the fixedsle'evameans for turning the rotary sleeve, a lfeed plug movablel axially within the rotary sleeve, helical means in the fixed sleeve, the rotary'sleeveand plug having follower means connected to move within the bowl and operating in the helical means, and axial channels in the rotary sleeve guiding the followers to move axially when the rotary sleeve is turned.

`8. The structure' defined in claim` 1, with the addition of an external manipulatable member and means operatively Vconnecting'said external manipulatabl'e member to the movable feed plug.

9. The vstructure defined in claim 5 with the addition of an external manipulatable member and means operatively connecting said external manipulatable member to the rotary sleeve. 1

l0. The structure defined in claim 5 with the addition of a demountable part `normally in fixed relation to the bowl, a stop element thereon, and a cooperating stop element carried by the rotary sleeve;` said stop elements'cooperating to' limit ,rotary movement of the rotary'sleeveand travel ofthe plug. f

1l. The structure defined in claim 5 with the addition or" relativelyrotary 'and separable 'elements detachably connected to the generally helical means. 'i

12. The structure defined in claim' with the addition of relatively rotary andseparable elements detachably connected to the generally helical means by mechanism in the nature of spring clips and lugs. 1

13. A smoking pipe comprising a vbowl having an open bottom, a stern 4formed integral with the bowl, a hollow member adapted to receive tobacco arranged toV be inserted withinA the open bottom,

and means for detachably securing the hollowlmember within the hollow opening;

14. A smoking pipe comprising a bowl having an open bottom, a stem formed integral with the bowl, a hollow member adapted to receive tobacco arranged to beinserted within the open bottom, and means for dctachably securing the hollow member within the hollowopening, said member comprising an upwardly movable bottom element for advancing the tobacco 'within the pipe bowl.

15.. A smoking pipe comprising a bowl having an open bottom, aholl'ow stem secured to and communicating with the bowl, a hollow magazine member adapted to receive tobacco arranged to be inserted within the open bottom, said magazine being disposed within. the bowl and extending above the region fof communication of the CII stem with the bowl and means for ldetachably securing the hollow member within the hollow opening, said member comprising an upwardly movable bottom element for advancing the tobacco within the pipe bowl and further comprising an external element for regulating the upward advancement of the movable bottom,

16. A smoking pipe comprising a bowl having an open bottom, a hollow stem secured to and communicating with the bowl, a hollow magazine member adapted to receive tobaceo arranged to be inserted within the open bottom, said magazine being disposed within the bowl and extending above the region of communication of the stem with the bowl and means for detaehably securing the hollow member within the hollow opening, said member comprising an upwardly movable bottom element for advancing the tobacco within the pipe bowl and further comprising an external element for regulating the upward advancement of the movable bottom and means for detachably positioning such bottom element relative to said hollow member.

17. A smoking pipe comprising a bowl having an open bottom, a hollow stem secured to and communicating with the bowl, a hollow magazine member adapted to receive tobacco, said member having an upwardly movable bottom element,

said member being disposed within the bowl and extending to a point above the region of communication of the hollow stein with the bowl, and means including an upwardly extending groove on the inner face of the bowl for advancing and withdrawing said bottoni element.

18. The combination or" a hollow member having a movable plug, a second hollow member surrounding said iirst named hollow member, and means for advancing and withdrawing said plug within said first named hollow member; said plug advancing and withdrawing means comprising a cam slot in one of said members, a cam slot in the other of said members extending parallel to the common axis of the two members, and a follower attached to said plug and extending through said slots respectively.

19. The combination with a hollow pipe bowl having an open bottom, a hollow stem secured to and communicating with the bowl, a magazine member for receiving tobacco disposed within the bowl, said magazine member extending above the region of communication of the stem with the bowl, closure means for thebottom opening ofthe bowl, and means for detaehably securing said closure means to the bowl.

MAURICE KEESENG.

Erl 

